Hail causes and formation process

cumulonimbus hail from the land down in a solid-state precipitation, generally about 0.2-0.3 mm in diameter, big up to 8 mm, in particular the location and circumstances may be greater, it can give crops, livestock and human caused great damage. The more dense, thicker clouds, the ground rush of hot air more hail the formation of larger volume.

hail causes and processes and land-based tornado similar to the causes and processes, both because of the weather caused by rapid mutation. Hail is a substantial period of time, due to the formation of convective clouds thickness up to several kilometers or more thick layer of very overcast, it is squeezed by high fever and supporting ground and increasing the frequency, so that heat is not the cold into the rain, a substantial part of it in a short time to block the sun's light and heat, also block the hot air up under the clouds to build up a lot of heat under clouds and high-pressure air. Because the cloud temperature is the temperature rise from the ground provided, so the temperature of high-altitude cloud cover the drop with the drop of surface temperature,cheap UGG boots, the temperature dropped rapidly to cloud contraction, the accumulation of large cloud of hot air under the momentum from the rapid shrinkage of the clouds rushed.

in high-altitude cold crystal-like structure of Miyun, was quickly rushed into the hot air of high moisture content and unite with each other to form the impact of hail falling, which will also produce violent thunder and lightning. Surface temperature dropped rapidly, so that those who can not originally in the high altitude in freezing zone into a freezing point of Miyun District, this would fall more hail. Hail falling, because of the ground by the rapid increase of heat flow and the impact of Miyun and supporting scroll up and down in the Miyun, slowing down the speed of its fall, so hail more time in the water absorbing polymer the increase of Miyun . Hail low density light transmission weak, reflecting strong degree, plus once in the clouds rolling, so were round and white (light color). The process usually do not last under the hail because it was incurred after sudden changes in temperature, while the process of mutation will not last long. Focal point of clouds because clouds thick and dense, falling hail from here will be larger in size.

Typhoon causes and formation process:

the causes and the formation of typhoons and tornadoes have in common the process. Typhoon or hurricane is far away from the mainland, more peaceful and more heat in the tropical oceans,UGG boots clearanc, from an area of great clouds formed the center of a diameter of several hundred kilometers or more in thickness up to more than 10 kilometers of very cloudy to overcast with high-speed rotation circle. Low atmospheric pressure under the cloud ring, surrounded by a wide range of atmospheric pressure also affected the low, low atmospheric pressure allows high tide. Cloud center of a circle connecting the upper low clouds and cloud clouds round the lower part of high-pressure channel, called the eye. Because the eye of the bottom and top of the connectivity, so the wind now particularly low pressure side. Other types of storms is no round eye and not very high-speed rotation of the cloud cycle.

circle above the low clouds Wind circle eye clouds under strong pumping high-pressure air (there have been news reports that the strong airflow around the eye of man blow to the high ground, this proves it strong suction), suction air is high up to provide cloud rotating high-speed rotation of the ring main power, coupled with cloud ring is under high pressure and heat of its supporting air, so clouds circle in weightlessness, it is like the flow of rivers Like in the whirlpool while high-speed rotation around its center, one side is closer and more heat (low atmospheric pressure) to attract the area step by step to move forward without direction, so the movement of typhoon uncertain and difficult to predict.

typhoon will pass through their area or around the lower atmospheric pressure. According to international classification, the maximum wind is less than eight hours, a tropical depression, 8 and 9 wind as tropical storms, 10 and 11 wind as tropical storm, maximum winds of 12 known as tropical cyclones, typhoon or hurricane. Typhoon rising tide of low atmospheric pressure can, it brings wind, rain and waves can cause flash floods and floods, destruction of houses, subversion ship, damaging crops, pose a safety hazard and destruction of port facilities, to the national economy and people's property with to huge losses.

typhoons in summer and autumn more than between the mainland and the flow away from the more tranquil form of tropical oceans, the formation of typhoons during the season will be stronger. Because the temperature of the water has been early summer and the summer sun for a long time in the sun and more heat, heat to produce more clouds, because the water is heated, so there is no sun during the day and all night to keep heat to produce a large number of clouds (especially in the Earth has been under the influence of global warming).

typhoons and cyclones are the same family, it is due to the early formation of a district in the tropical oceans than over the heat began to build in its cloud (such as heat because the heat caused by currents or natural causes, which seasonal temperature differences between continental and marine air temperature is not, a large number of evaporation from the ocean clouds will not be the same as the early summer heat absorption to the mainland. Ocean evaporation rate of clouds and measure far greater than land transport). Airflow in a calm and stable under the conditions of the sea environment, which remain substantially more heat in the tropical areas of marine clouds, heat absorption and heat storage in addition to their own but also blocked heat up under the cloud, so that the clouds formed a low atmospheric pressure after inhalation of a large number of clouds.

from the theoretical analysis, resulting in the sea in a calm and stable environment, has begun to slow rotation of the circular cloud will have a focal point for the hottest and lowest atmospheric pressure. Because the hot air (clouds) is not out of the surrounding cooler areas, only the hot cloud around the cloud is inhaled (especially the central part of the hotter thermal cloud inhalation), thermal cloud can only be forced to rise, so clouds would grow thicker, can be more than 10 km thick. Because of the colder clouds clouds will flow outside the inner circle was more hot clouds, the clouds will be around this large cloud from outer to inner impact and compression, coupled with cloud cover the upper and lower compression, so the clouds will quickly increase the site density and thickening . The thicker the cloud will become more dense hot cloud of hot and extremely low atmospheric pressure suction will produce together, so the clouds will not spread, coupled with cloud cover was the hot air under high pressure build-up supporting, over a variety of situations to This is substantially in the weightlessness of the clouds, slowly rotating low pressure area into a circular cloud, up to 1000 km in diameter.

if this piece is the slow rotation of the cloud formation in the early summer or the coastal ocean, because the early summer sea surface temperature much lower than the mainland, coastal land and sea will form a large temperature difference and distance, near, this situation will The thermal force on the mainland to attract the high clouds. Because of cloud movement speed, no longer calm and stable development environment into a typhoon, it can only become a strong tropical storm, tropical depression or a lot of rain clouds being sucked to the mainland. Although it is equally a tropical storm can produce strong winds rotating clouds,UGG boots cheap, but not the same as the typhoon has more high-speed rotation, a more circular cloud ring and a very round eye. Because the tropical storm or tropical depression is a very close and the magnitude of great clouds, under which the atmospheric pressure is very low,UGGs, low atmospheric pressure in the lateral movement will also bring strong winds attacked region and torrential rain.

in the form of typhoons and tropical oceans is a long, long time from the typhoon's eye continued to rise in high speed and high temperature high pressure air, and its rotational forces will strongly affect the clouds around the eye rotation. Because of the high moisture content of gas clouds is not solid, only by clouds and the clouds and the cohesion between the traction drive cloud rotation, so powerful and high-speed eye rotation force, not real-time the whole cloud is quickly driven to high-speed rotation only slowly drive, driving force of the inner circle from the cloud slowly around the outer ring extending to the clouds, for example, only the ability to drive traction outside the eye around the 250 kilometers outside the range. After a period of time after a strong drive to form a diameter of more than 500 kilometers of high-speed rotation of the cloud ring, its center thickness of the clouds can reach over 10 kilometers, clouds circle more than thin clouds will also be stirred . When the clouds circle the rotation to high speed, its high-speed rotation force will gather the clouds become thicker and more dense, forming a vast high-speed rotation and horizontal movement of air a great individual (Typhoon).

before the formation of typhoons in the center, the high pressure and high temperature air to limit the upward impulse or drill time, should be in the hottest time, because this time the clouds will be the sun's heat direct the high temperature state, the most strong and fast heat can break the power of the center of a very thick clouds. Since before the formation of Typhoon is an internal heat of the cloud, for example, temperature jump through the clouds, hail, lightning, wind eye formation, the process of cloud rotation and the rain, the temperature will be reduced slightly to a little cloud, which will Typhoon lateral movement speed increase, but not high speed, the speed depends on the front of the region and the region in which the temperature difference between a typhoon or atmospheric pressure Difference.

because the round earth's rotation is faster, the speed relative to the sun is also moving fast, the typhoon will follow the sun's heat and hot sun of the land by the rising heat to attract move forward, the typhoon will move to the West . Typhoon northern hemisphere (including other types of storms or tropical depressions) in normal circumstances without blowing the west hit the east, or towards the north of the continent (north of the mainland, if the upper and lower average temperature is higher than the West), which situation will form a large sea area east of the continent more easily form the desert heat, because less rain clouds to reach these areas. In the northern hemisphere, the clouds began to turn and park-type shape when the lateral movement began, also tend to the West, the various types of rotating storms are anti-clockwise rotation in accordance with the reasons I believe are relevant.

for up to tens of kilometers in diameter and can be more than 10 kilometers thick typhoon eye is very low, coupled with atmospheric pressure under typhoon clouds low clouds inside more heat, more heat clouds attract cold clouds, so the whole circle of cloud cloud will be very low heat and cohesion, coupled with cloud high-speed spin cycle will produce together, so cloud is in operation will not be dispersed and lost their way. Instead, the very low pressure eye of typhoon wind attractive rotating cohesion will continue to introduce a large number of clouds, providing a typhoon's energy. Typhoon is the cloud and thermal energy, the main driving force is the hot air through the eye increases rapidly rotating action.